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lina2011 [118]
4 years ago
6

Question 19 (1 point)

Biology
2 answers:
Lerok [7]4 years ago
8 0

Answer:

Concept 15 DNA and proteins are key molecules of the cell nucleus. DNA was discovered as a major chemical of the nucleus at about the same time Mendel and Darwin published their work. ... Proteins were also known to be polymers of numerous amino acids.

Explanation:

Montano1993 [528]4 years ago
6 0
Atoms. they make up everything
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